20100022111212 has 96 divisors (see below), whose sum is σ = 51021181290240. Its totient is φ = 6135102136320.

The previous prime is 20100022111171. The next prime is 20100022111291. The reversal of 20100022111212 is 21211122000102.

It is a super-2 number, since 2×20100022111212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20100022111191 and 20100022111200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7440714 + ... + 9775697.

It is an arithmetic number, because the mean of its divisors is an integer number (531470638440).

Almost surely, 2^{20100022111212} is an apocalyptic number.

It is an amenable number.

20100022111212 is an abundant number, since it is smaller than the sum of its proper divisors (30921159179028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100022111212 is a wasteful number, since it uses less digits than its factorization.

20100022111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216591 (or 17216589 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20100022111212 its reverse (21211122000102), we get a palindrome (41311144111314).

It can be divided in two parts, 2010002 and 2111212, that added together give a palindrome (4121214).

The spelling of 20100022111212 in words is "twenty trillion, one hundred billion, twenty-two million, one hundred eleven thousand, two hundred twelve".